Transforming air into clean fuels & chemicals
Shaping the future of energy - clean, competitive, unstoppable.
Our mission
Aerleum® mission? We’re building a future where energy & products no longer depend on fossil fuels, but are powered by the CO₂ already in our atmosphere. We’re not just delivering alternatives - we’re doing it without compromising on cost, scalability, or operational efficiency.
We are
Aerleum®
Aerleum® is a French company, co-founded in June 2023 by Steven and Sébastien, emerging from Marble, a climate venture studio.
Our journey began with a single question:
How can we turn CO2 into a competitive product? As we delved into this challenge, we streamlined the process, eliminating costly steps, and gave life to our cutting-edge integrated technology.
Designed to be competitive with fossil fuels
Reactive Sorbent
Our materials are functionnalized with two properties: the same support can adsorb CO2 and then convert it into a product.
Custom Engineered Reactor
A streamlined process comes along with a custom design for the reactor. It has been build for scale, versatility and efficiency.
Precision Heating
A process heated in less than a minute? Yes, fast heat and instantaneous on/off switch. It's really suited for what we're doing.
Our sectors
We aim to turn a gigaton of CO2 into essential products. It starts with methanol.
Maritime
Road
Chemical industry
Aviation
All our partners
Join our fuel
Check-out our open positions if you're interested by the mission and willing to crack a climate challenge.
Co-founder & CEO
Sébastien
Co-founder & CTO
Steven
Some questions
How was Aerleum created?
Aerleum was founded by Sébastien Fiedorow and Steven Bardey to address the environmental and economic challenges of fossil fuels by producing clean fuels and chemicals from CO2 captured directly from the air. The company developed a patented technology that integrates CO2 capture and conversion into a single reactor, enabling efficient and cost-competitive production of e-methanol.
What makes Aerleum’s reactor unique?
Aerleum’s reactor integrates both CO2 capture and conversion into one unit using a bifunctional material that facilitates the direct synthesis of methanol. This novel design, paired with precise electric heating, enables scalable production without the need for additional steps such as CO2 compression or transportation.
How does Aerleum ensure cost competitiveness with fossil fuels?
By streamlining the CO2-to-methanol value chain, Aerleum’s process achieves cost parity with fossil-based methanol. The elimination of energy-intensive steps, coupled with advancements in hydrogen production and precision heating, drives down production costs to levels competitive with conventional fuels.